James grady



N0. M0 352. Y Patented Sept. 6, I898. J. GRADY.

BICYCLE HANDLE BAR.

(Application filed Aug. 11, 1897.)

(No Model.)

UNITED STATES JAMES GRADY, OF NEW YORK, N. Y.

BICYCLE HANDLE-BAR.

SPECIFICATION forming part of Letters Patent l\ To. 610,352, datedSeptember 6, 1898.

T0 at whom it may. concern:

Be it known that I, JAMES GRADY, a citizen of the United States,residing at New York, (Brooklyn,) in the county of Kings and State ofNew York, have invented an Improvement in Bicycle Handle-Bars, of whichthe following is a specification.

My invention relates to an improvement in bicycle handle-bars that arecapable of a vertical adj nstment at thepleasure of the wheelman andthat may be securely and positively fastened in the desired positionwithout the risk of being shifted by the weight put thereon by the riderin use.

In carrying out my invention I provide the handle-bar stem with a headin the form of a band,within which is a perforated ring-center,

and I provide the respective handle-bar por-' tions with disks that arereceived in the opposite sides of the head of the stem and withlocking-pins between the respective parts, which form a positiveconnection, and a bolt passes through the diskends of the handlebars andthrough the head of the stem, securely holding the bars to the head ofthe stem in the desired position as adjusted.

In the drawings, Figure l is an elevation representing my improvement.Fig. 2 is a plan of the handle-bars and section through the head of thestem and disks of the handles and the means for connecting the same.Fig. 3 is an elevation, and Fig. 4 a vertical section, through the headof the handle-bar stem. Figs. 5 and 6 are elevations of the disk ends ofthe handle-bars. Fig. 7 is an elevation of the head of the handle-barstem and the disk ends of the handle-bars, showing a modification; andFig. 8 is a plan and partial section showing a further modification ofmy improvement.

a represents the handle-bar stem, which, as usual, is adapted to fitinto the head-tube of the bicycle. The upper end of this handlebar stema is made with a head a in the form of a band, within which is aring-center a made with equidistant perforations 2.

b I) represent the respective parts of the handle-bar, and c c the gripsor handles on the outer ends of the same.

The inner ends of the handle-bars I) Z) are provided with perforateddisks d (1. These disks are presumably drop-forgings with head portionshaving reduced ends that fit into the ends of the tubular handle-barsand which in the course of manufacture are brazed to said head acting asa socket to hold said disks and Within which the same turn as thehandlebars are adjusted. The opposing faces of said disks of d areprovided with equidistant pins 3, and it is preferable to employ threeequidistant pins. These may be integral with the disks or insertedtherein. These pins enter the perforations 2 in the ring-center, and itis preferablethat the pins on the disk 01 cccupy an intermediate orstaggered position to the pins on the disk d, so that the six pins willbe received in six different perforations, and as there are a largenumber of perforations a great latitude of adj ustability is providedfor the bars from a very low-down position to quite an elevated positionat the option of the wheelman.

The bolt 6 passes through one disk, through the opening in theperforated ring-center 00*, through the other disk, and is provided witha nut c for holding and clamping the parts in place. When it is desiredto move the handle-bars to a different position, it is only necessary toloosenthe nut of the bolt sufficient to withdraw the pins of the disksfrom the perforations of the ring-center, so that the disks may turn inthe band-head 0., and When'the desired position is determined upon thenut is readily tightened again to secure the parts.

The opposing faces of the disks d d are preferably recessed, and withinsaid recessed portions and the ring-center a I prefer to employ ahelical spring 6 around the bolt 0, so that when the nut is loosened onthe bolt for the purpose of adjusting the handles the spring presses thedisks outward, so that the adjustment of the handle-bars is more easilyeffected.

In the modification shown in Fig.7 the ringcenter a is provided withpins 4:, that pass through the same and project from both faces, and thedisk ends 01 d are provided with perforations 5 to engage said pins inthe various positions in which the bars may be placed.

In the modification shown in Fig. 8 the ringsenter a is perforatedcorrespondingly with that shown in Fig. 3, and the disk ends 01 d of thehandle-bars are provided with several perforations 6,that aline with theperforations in the ring-center, and I provide face-plates ff with longpins 7, which pins preferably agree in number with the perforations ofthe disk ends 61 d and pass through said perforations and enter theperforations in the ringcenter, and the bolt 6 passes through theface-plates, the disk ends, and the ring-center, and is provided with anut e for securely fastening the parts as they may be adjusted. I preferthe form of bolt with the square shoulder next the head and shown inFig. 8 to the form shown in Fig. 2, although this is not material. Thesimpler form of construction and that which I prefer is shown in Figs. 1to 6, inclusive. v

My improved handle-bar is readily and quickly adjusted to the positiondesired by the wheelman, and when in that position is so securelyfastened that there is little or no possibility of the weight laid uponthe bars by the rider in use or the vibration of the machine changing orshifting the position of said bars.

I claim as my invention- 1. The combination with the handle-bar stemhaving a band-head with a ring-center and similar recesses at oppositesides, of the handle-bar portions eachhaving a disk end and the endspassing from opposite directions into the recesses within the band-headand setting against the ring-center, a central bolt passing through theparts for clamping them together, and pins passing into holes forpreventing the handles turning on the bolt, substantially as set forth.

2. The combination with the handle-bar stem, the band-head therefor andthe integral ring-center, of the handle-bar portions and their disk endssmaller than the band-head and fitting within the same and against thering-center, a spring within the ring-center between the disk ends and abolt passing through said parts, and a nut for clamping the parts, therebeing perforations and pins between and for locking the parts in thedesired position, substantially as set forth.

3. The combination with the handle-bar stem, the band-head therefor andthe integral perforated ring-center, of the handlebar portions and thedisk ends 01 d thereto smaller than and fitting within the band-head a,the opposing faces of said disk ends being recessed, a helical springwithin the ring-center and recessed faces of the disk ends, a boltpassing through said parts and through the spring and having a nut forclamping the parts, there being pins within and between the respectiveparts and passing through the perforations for locking the parts in thedesired position of adjustment, substantially as set forth.

Signed by me this 5th day of August, 1897.

JAMES GRADY.

Witnesses:

GEo. T. PINCKNEY, HAROLD SERRELL.

